From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3tXFKw4dxdzDsxq for ; Mon, 5 Dec 2016 17:32:20 +1100 (AEDT) Received: from mail-pg0-x243.google.com (mail-pg0-x243.google.com [IPv6:2607:f8b0:400e:c05::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tXFKv6lY3z9t1h for ; Mon, 5 Dec 2016 17:32:19 +1100 (AEDT) Received: by mail-pg0-x243.google.com with SMTP id x23so15454205pgx.3 for ; Sun, 04 Dec 2016 22:32:19 -0800 (PST) Subject: Re: [PATCH v2] powerpc/powernv: Initialise nest mmu To: Michael Ellerman , linuxppc-dev@ozlabs.org References: <1480903162-1986-1-git-send-email-mpe@ellerman.id.au> Cc: alistair@popple.id.au From: Balbir Singh Message-ID: Date: Mon, 5 Dec 2016 17:32:13 +1100 MIME-Version: 1.0 In-Reply-To: <1480903162-1986-1-git-send-email-mpe@ellerman.id.au> Content-Type: text/plain; charset=windows-1252 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 05/12/16 12:59, Michael Ellerman wrote: > From: Alistair Popple > > POWER9 contains an off core mmu called the nest mmu (NMMU). This is used > by other hardware units on the chip to translate virtual addresses into > real addresses. The unit attempting an address translation provides the > majority of the context required for the translation request except for > the base address of the partition table (ie. the PTCR) which needs to be > programmed into the NMMU. > > This patch adds a call to OPAL to set the PTCR for the nest mmu in > opal_init(). > > Signed-off-by: Alistair Popple > Signed-off-by: Michael Ellerman > --- Reviewed-by: Balbir Singh